◆ Output 4 vertical and 4 horizontal red laser lines, 1 down laser dot
◆ Self-leveling and light blink alarm when beyond self-leveling range
◆ Compatible both indoor and outdoor application
◆ Instrument base could be rotated by 360° freely
◆ 4V4H1D electronic model
◆ Working range without detector: 15m
◆ Working range with detector: 50m
◆ Laser line wavelength: 635nm; Dot wavelength: 650nm
◆ Laser class: Class Ⅱ
◆ Accuracy:±1mm/10m
◆ Self-leveling range: ±2.5°
◆ Working temperature: --5~45℃
◆ Power: 4*AA batteries or Li battery